That is bullshit. I must be the only one who thinks there should be laws?
There are no equivalent laws for any other form of media. Why do you believe that video games need special legal treatment?
Currently, video games are self-regulated by the ESRB in exactly the same way that movies are self-regulated by the MPAA. A 14 year old can't buy a movie ticket or a DVD that's rated R from most places. Similarly, a 14 year old cannot buy an M rated game from most places. Why pass a law?
I believe a study was released last year as well (that I can't find now) that said it was actually easier to buy films underage than games.